Rod-locking device



Dec. 29, 1925. 1,5675850 G. F. LONG 1301i LOCKING DEVICE i'iled Jan. so, 1925 I [NFL "TOR 6607296 F'- L 0 p9 Wadi/ Patented Dec. 29, ita -2:3,

UNITED STATES ise'zasa GEORGE F. LONG, OF ELMHURST, NEW YORK.

ROD-LOCKING- DEVICE.

Application filed January 30, 1925.

T 0 all whom it may concern Be it known that I, Gnone'n F. Lone, a citizen of the United States, and resident of Elmhurst, in the county of Queens and State of New York, have invented certain new and useful Improvements in Rod-Locking Devices, of which the following is a specification.

The invention relates in general to a manually actuated control for operating mechanism at a distance, and the invention specifically relates to control for adjusting flexible draft wires used to control cutouts, to testvalves, to relieve back pressure and choke or prime carburetors ofinternal combustion engines where the controlled device is connected by such a wire to a handle positioned convenient to the operator.

In such types of control it has been known to lock the wire controlling handle in its adjusted longitudinal position by a rotary movement of the handle acting through some form of locking mechanism. The present disclosure relates specifically to an improved form. of such locking mechanism.

The primary object of the invention is to provide a simplified and compact form of locking device of the type outlined, which device can be readily and easily mounted in position on the dash board of a motor vehicle or similar support; which can be easily connected to the wire controlled by the same, which will be positioned inits actuation even under conditions where it is subjected to rough treatment; which can be easily and cheaply constructed and which will provide ready access from the front side of the dash board or support for the purpose of inspection or repair of damaged parts.

Various other objects and advantages of the invention will be in part obvious from an inspection of the accompanying drawings and in part will be more fully set forth in the following particular description of one form of device embodying my invention, and the invention also consists in certain new and novel features of construction and combination of parts hereinafter set forth and claimed. i

I11 the accompanying drawing:

Figure 1 is a vertical sectional view taken through a preferred embodiment of the invention shown 'mounted in position on a vehicle dashboard and showing. the parts Serial No. 5,718.

disk partially rotated toward its locking position.

In the drawings there is shown a support 1O, which in the present instance, may be considered as the dash or instrument mounting board of a motor vehicle. Positioned on this board is the locking device, consti tuting the subject matter of this disclosure and herein shown to be used as part of the control for the priming or chock device at the carburetor.

The device includes a long tube 11, hereinafter referred to as a slide bearing, to the rear end of which is threaded a cap nut 12 and extending through and from which cap is a draft wire 13 leading to the chock device of the carburetor. At the forward end of the bearing 11 and secured to the front side of the dash board is a casing 14 the bottom 15 of which is preferably formed as an outstanding circular flange integral with the forwardfend of the tube 11.

The casing 14 includes a cap 16, fitted over the flange 15 and secured thereto by a pair of screws 17 and 18, which pass through the cover, through the bottom 15 and extend into the dash board to mount the casing in position and to secure the parts in relative position. The underside of the cover 16 is recessed concentrically of the axis of the tube 11 to provide an external circular bearing 19. Rotatably mounted within this recess, between the bottom 15 and the cover 16, is a flat circular plate 20, (hereinafter referred to as a locking disk). The locking disk is rotatably mounted at its periphery in engagement with the circular bearing 19 so that the locking disk is normally held in concentric relation to the axis of the slide bearing 11. The plate 20 is provided between its center and periphery with a slot 21, which extends in eccentric relation to its axis of rotation. A pin 22 is secured to the bottom 15, offset from its center and projects forwardly into the slot 21.

It will be understood from this construction that the rotation of the locking plate in a clockwise direction, as indicated by the arrows in Figures 2 and 3, will cause a longitudinal edge of the slot to bear against the pin and thus lock the plate relative to the pin and thus relative to the casing as a whole. It is obviously within the scope of the disclosure to incline the slot 21 in the direction opposite to the direction illustrated and thus provide for a locking movement when the plate is rotated anti-clockwise and it is also obvious that both types of slot may be used and combined into a wide spreading Y effect so that the plate will be locked when rotated in either direction.

Slidably mounted in the long bearing 11 is a stem 23 the inner end 24 of which is reduced and perforated to provide an easily fastened connection for the draft wire 1.3. The opposite or forward end of the stem 18 projects beyond the casing 14 and is provided with some suitable form of cross-head handle 25. The major portion of the stem is flattened as shown at 26 so as to provide a non-circular configuration to the portion of the stem which extends through the casing. The stem is mounted normally for free sliding movement both in the bearing 11 and in the casing. The non-circular portion also extends through a similarly shaped aperture in the locking disk 20 as shown particularly in Figures 2 and 3 so that the stem is free to slide longitudinally through the disk but any rotary movement of the stem will react on the disk to rotate the same to or from the locking position as hcreinbefore described.

. In operation it will be understood tha the stem may be drawn or pushed longitudinally into its desired adjusted position, when the locking disk is in its inoperative position as indicated in Figure 1. A slight rotary movement of the handle 25 clockwise will then look the stem in its adjusted longitudinal position and a similar anti-clockwise rotation of the stem will move the disk from its camming engagement with the pin aid thus unlock the stem.

Should it be desired to open the casing for the purpose of repairing or replacing the locking mechanism or for the purpose of lubricating the same, the screws 1'7 and 18 can be loosened, the cap removed and this may be done without dearranging the other parts of the device or disconnecting the draft wire. While the slide bearing has been shown to be relatively long so as to feature a long bearing to the stem, it is obviously within the scope of the disclosure t eliminate the tube in part or entirely and to depend solely upon the casing to guide and lock the tube.

Having thus described my invention, I claim: 7

1. In d ce of he class desei'i e l the combination of a casing including a bottom and a cover coacting to form within the casing an external circular bearing, a locking disk mounted for rotary movement in said bearing, said disk provided with a slot extending eccentrically of the axis of rotation of the locking disk, a pin secured to the easing and extending into said slot and providing means for locking the disk against rotary movement relative to the casing, a stem non-circular in cross section extending axially through the casing and disk, and said stem having its noncircular portion fitting within a similar shaped aperture in the center of the locking disk whereby rotary movement of the stem will. cause a similar movement of the disk.

2. In a device of the class described, the

combination of a slide bearing, a casing at one end, said casing provided with a pin offset from the axis of the bearing, a cover for the casing, a locking disk contained in the casing and provided with a slot containing said pin and eccentric to the axis of the bearing and a stem slidably mounted in the bearing and slidable through the casing and locking disk and operatively connected to the locking disk to rotate the same.

3. In a device of the class described, the combination of a slide bearing provided with an offset pin, a stem slidable longitudinally in the bearing, a plate rotatable by a rotary movement of the stem and otherwise fixed relative to the bearing, said plate provided with a slot eccentric relative to the axis of the stem and containing said pin.

4. In an automotive vehicle, the combination with an instrument board, of a control for an operative part of the vehicle including a long tube intruded through the board and having an outstanding flange at one end, a cap fitted over the flange and secured therewith to the board, a flat locking disk journalled for rotary movement in the cap, a stem slidably mounted in the long tube, free to slide longitudinally through the disk and operatively connected to rotate the disk and camming means having its periphery fixed between the cap and flange against movement longitudinally of the stem and 0peratively controlled by the rotary movement of the stem for locking the same to the tube.

5. In a device of the class described, the combination of a slide bearing, a stem 'slidably mounted therein, a locking disk provided with an eccentric camming edge and means including a pin engaging said cammmg edge and controlled by a rotary movement of the stem in the bearing for locking the stem against longitudinal movement;

6. In a device of the class described, the combination of a support, a stenr-mounted in the support for longitudinal and rotary movement and means fixed against timeinelit t e direction of lengit i liii l meta against longitudinal movement.

7. In a device of the class described, the combination of a locking device, a stem extending through said locking device and normally free for longitudinal and for a 10 limited rotary movement, and said locking device provided with means forming a peripheral cam fixed longitudinally of the stem and controlled by the rotary movement of the rod for securing the rod to the locking device in the dilferent longitudinally adjust-ed positions of the stem.

Signed at Elmhurst in the county of Queens and State of New York this 26th day of January, A. D. 1925.

GEORGE F. LONG. 

